Smooth & sleek HeatGear® fabric is durable, comfortable, and won't weigh you down. 4-way stretch fabrication improves range of motion, dries faster and maintains shape. Signature Moisture Transport System wicks sweat to keep you dry. Anti-odor technology prevents the growth of odor-causing microbes to keep your gear fresher, longer. 30+ UPF protects your skin from the sun's harmful rays. Smooth flatlock seams prevent chafing. Heat-sealed UA logo. 5.0 oz. Polyester/Elastane. Imported.